iron facts timmy

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Iron

Density 7.874 g/cc

Melting Point 1538.°C

Boiling Point 2861.°C

CAS Registry ID: 7439-89-6

Group number: 8

Group name: (none)

Period number: 4

Block: d-block

Electronegativity according to Pauling

1.8

Boiling point

2861 °C

Vanderwaalsradius

0.126 nm

Ionic radius

0.076 nm (+2) ; 0.064 nm (+3)

Isotopes

8

Electronic shell

[ Ar ] 3d6 4s2

Energy of first ionisation

761 kJ.mol -1

Energy of second ionisation

1556.5 kJ.mol -1

Energy of third ionisation

2951 kJ.mol -1

Standard potential

- o.44 V (Fe2+/ Fe ) ; 0.77 V ( Fe3+/ Fe2+ )

Particle
 Location
 Weight
 Charge

Proton

Nucleus

1.0073 amu

Positive

Neutron

Nucleus

1.0087 amu

Neutral

Electrons

Electron Cloud

0.000549 amu

Negative

Iron is best metal for making weapons and tools because It is a strong metal.